P1 – Input
Figure 9
All the logic input to the controller have to be connected to P1
mating connector. The provided P1 mating connector is
equipped with pin 3 and pin 8 shorted to enable the pump start.
The connections should be done with AWG 24, (0.24 mm2) or
smaller wire.
The following table describes the signals available on the
connector.
Tab. 3
Pins
Name
1-com
Start/Stop
2-com
Low Speed
3-com
Interlock
4-com
System
Override
TwisTorr 84 FS AG Rack Controller User Manual / 87-901-037-01 (D)
P1 input connector
Description
Contact closed = Start
Contact open = Stop
Contact closed = Low Speed
Contact open = High Speed
Contact closed = Active
Contact open = Inactive
If active allows the pump running, if
inactive stops the pump.
Contact closed = System enabled
Contact open = System disabled
If system enabled allows the pump
running, otherwise stop the pump
and all the others connected
devices (Fan, Vent).
Technical Information
Controller Connection
Electrical
Note
Optically isolated
Active only in
Vlow, max = 10v
Remote Mode
Imax = 5mA
operation
Imin (on) = 2mA
Optically isolated
Active only in
Vlow, max = 10v
Remote Mode
Imax = 5mA
operation
Imin (on) = 2mA
Optically isolated
Active in all
Vlow, max = 10v
modes
Imax = 5mA
Imin (on) = 2mA
Optically isolated
Active in all
Vlow, max = 10v
modes
Imax = 5mA
Imin (on) = 2mA
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